I see that you went up from 275 65r18 to 275 60r 20. I now have 20 inch wheels but 275 55r20 and I want a bit more sidewall so I'm either keeping the 20 inch wheels and going with 275 60r20 (1 inch more sidewall), or going to 18 inch wheels and going with 275 65r18. Could you please share which rode better....the 18 inch wheels you had with 275 65r18 or the 20's with 275 60r20??? Thanks so much.